CIPC Doesnt take voice vlan Ip Address

ia have my pc (windows) connected to a 3com switch and its takes the ip address from an active directory. but to apply Voice QoS, i need that the CIPC takes an ip address from the voice vlan. placing a 7911 or 7941 in the network plug they take the voice vlan ip address. how i configure the CIPC to takes the voice vlan ip address?

CIPC is a SW running on a PC and uses the IP address of the PC.
You just have to configure the the IP address of the TFTP server (Callmanager running the TFTP service).
Therefore there is no need for the phone to get a IP address from the Voice VLAN.
Pierre.

Similar Messages

  • Inter-VLAN routing, Auto-Voice VLAN and IP Address-Helper

    Hope that somebody can help me with the setup in the screenshot. 
    Planning to use Auto-Voice VLAN and Smartports to configure VOIP
    LLDP-MED will be enabled on the switch to detect the IP phones so they will be moved to the Voice VLAN (If not the first 6 signs will be added to the OID table). The Voice VLAN ID will be 2 >> Voice VLAN will be automatically enabled once a device is recognized as a IP phone right? 
    Workstations will be connected to the Cisco switch, VLAN data will be untagged and will remain on the native VLAN.
    Smartports will be used to configure the ports (Macro's) >> Should configure the ports as trunks as assigns the correct VLANs right?
    But how do i configure the IP Helper-Address? Do i have to create the Voice VLAN on both switches and then run the command "IP Helper Address" to specify a DHCP server? From what i've been reading it's required, when using Inter-VLAN routing, to configure the VLAN interface with an IP address. But it's going to give problems when both switches are connected to eachother and both have the same VLAN configured including the same IP address assigned to their VLAN interface?
    Normal data should pass  the ASA firewall, VOIP traffic should go through the Vigor modem to a hosted VOIP provider. The best way, i assume, is to configure 2 separate scopes on the DHCP server?
    Still confused on how to set it up, hope that someone can point me in the right direction

    If you're sending voice to only the Vigor modem then there is no need for a trunk between the SF-300 and the Vigor modem. You can just set that to an untag packet for the VLAN 2 between that switch and the Vigor modem.
    On the 'edge' SF300 where the IP phone/PC is it is obviously going to interoute there and of course the phone port is tagged and PC port is untagged.
    For the IP helper, it uses UDP-RELAY and it should be enabled on the port itself and enabled on the global configuration. You may also need option 82. Also keep in mind, depending how your DHCP server works, it may need option 82 configured as well or at least a route to understand the subnets in the layer 3 environment to get traffic across the VLANS.

  • SG-300 28P switches problem with VLAN Data and Voice, working all the time as Voice VLAN

    Hi Everyone,
    Thank you very much for your help in advance. I’m pulling my hair to fix the problem.
    I  just got the new SG-300 28P switches. My Bios ordered for me. I did not  know how it runs until now... not an IOS based. I really do not know  how to configure it.
    I have 2 VLAN are Data and Voice.
    -          Data VLAN ID is 2 IP 192.168.2.X/255.255.255.0
    -          Voice VLAN ID is 200 IP 192.168.22.X/255.255.255.0
    -          I created two vlans, in switch, Data and Voice.
    -          On the port number 28, it is trunk by default, so I add Data vlan ID 2 tagged.
    -          On the port number 26, it is trunk by default, so I add Voice vlan ID 200 tagged.
    -          On the port number 27, I add Data vlan ID 2 tagged for Data vlan out.
    -          Port settings No.1
    I set it up as Trunk with Data vlan 2 untagged, and  200  Tagged (voice vlan). I plugged in a phone with a pc attached. But the  PC will get to the vlan 200 to get the DHCP address, but no from vlan 2.  The Phone works with correct vlan ip.
    -          Port settings No.2
    Trunk with vlan 1UP, 2T, and 200T. The phone is even worse. Would never pick up any IP from DHCP.
    -          Port settings No.3
    Access  with 200U...of course the phone will work... and the PC could not get  to its own vlan. Instead, the PC got an ip from the voice vlan. Not from  VLAN 2.
    I have Linksys phone I’m not sure if this help.
    For more information I setup in switch,
                - enable voice vlan
    - set the port on auto voice vlan
    - enable LLDP-MED globally
    - create a network policy to assign VLAN 200
    - assign this network policy to the port the phone is connected to.
    I  hope this information help to help me to setup Data and Voice vlans, to  plug the phone to work with vlan Voice 200 (IP rang 192.168.22.X), from  phone to Pc and pc work as Data vlan 2 (IP rang 192.168.2.X).

    I just got done setting up voice VLANs on an SF 300-24P and verified working.  This was working with Cisco 7900 series phones connected to a Cisco UC setup.
    Here's my sample config.
    Note that I edited this by hand before posting, so doing a flat out tftp restore probably won't work.  However, this should give you a clue.  Also, don't take this as 100% accurate or correct.  I've only been working with these things for about a week, though I've worked with the older Linksys SRW switches for a couple of years.  I'm a CCNP/CCDP.
    VLAN 199 is my management VLAN and is the native VLAN on 802.1q trunks.
    VLAN 149 is the data/computer VLAN here.
    VLAN 111 is the voice/phone VLAN here.
    VLAN 107 does nothing.
    interface range ethernet e(1-24)
    port storm-control broadcast enable
    exit
    interface ethernet e1
    port storm-control include-multicast
    exit
    interface ethernet e2
    port storm-control include-multicast
    exit
    interface ethernet e3
    port storm-control include-multicast
    exit
    interface ethernet e4
    port storm-control include-multicast
    exit
    interface ethernet e5
    port storm-control include-multicast
    exit
    interface ethernet e6
    port storm-control include-multicast
    exit
    interface ethernet e7
    port storm-control include-multicast
    exit
    interface ethernet e8
    port storm-control include-multicast
    exit
    interface ethernet e9
    port storm-control include-multicast
    exit
    interface ethernet e10
    port storm-control include-multicast
    exit
    interface ethernet e11
    port storm-control include-multicast
    exit
    interface ethernet e12
    port storm-control include-multicast
    exit
    interface ethernet e13
    port storm-control include-multicast
    exit
    interface ethernet e14
    port storm-control include-multicast
    exit
    interface ethernet e15
    port storm-control include-multicast
    exit
    interface ethernet e16
    port storm-control include-multicast
    exit
    interface ethernet e17
    port storm-control include-multicast
    exit
    interface ethernet e18
    port storm-control include-multicast
    exit
    interface ethernet e19
    port storm-control include-multicast
    exit
    interface ethernet e20
    port storm-control include-multicast
    exit
    interface ethernet e21
    port storm-control include-multicast
    exit
    interface ethernet e22
    port storm-control include-multicast
    exit
    interface ethernet e23
    port storm-control include-multicast
    exit
    interface ethernet e24
    port storm-control include-multicast
    exit
    interface range ethernet g(1-4)
    description "Uplink trunk"
    exit
    interface range ethernet g(1-4)
    switchport default-vlan tagged
    exit
    interface range ethernet e(21-24)
    switchport mode access
    exit
    vlan database
    vlan 107,111,149,199
    exit
    interface range ethernet g(1-4)
    switchport trunk allowed vlan add 107
    exit
    interface range ethernet e(21-24)
    switchport access vlan 111
    exit
    interface range ethernet g(1-4)
    switchport trunk allowed vlan add 111
    exit
    interface range ethernet e(1-20)
    switchport trunk native vlan 149
    exit
    interface range ethernet g(1-4)
    switchport trunk allowed vlan add 149
    exit
    interface range ethernet g(1-4)
    switchport trunk native vlan 199
    exit
    voice vlan aging-timeout 5
    voice vlan oui-table add 0001e3 Siemens_AG_phone________
    voice vlan oui-table add 00036b Cisco_phone_____________
    voice vlan oui-table add 00096e Avaya___________________
    voice vlan oui-table add 000fe2 H3C_Aolynk______________
    voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
    voice vlan oui-table add 00d01e Pingtel_phone___________
    voice vlan oui-table add 00e075 Polycom/Veritel_phone___
    voice vlan oui-table add 00e0bb 3Com_phone______________
    voice vlan oui-table add 108ccf MyCiscoIPPhones1
    voice vlan oui-table add 40f4ec MyCiscoIPPhones2
    voice vlan oui-table add 8cb64f MyCiscoIPPhones3
    voice vlan id 111
    voice vlan cos 6 remark
    interface ethernet e1
    voice vlan enable
    exit
    interface ethernet e1
    voice vlan cos mode all
    exit
    interface ethernet e2
    voice vlan enable
    exit
    interface ethernet e2
    voice vlan cos mode all
    exit
    interface ethernet e3
    voice vlan enable
    exit
    interface ethernet e3
    voice vlan cos mode all
    exit
    interface ethernet e4
    voice vlan enable
    exit
    interface ethernet e4
    voice vlan cos mode all
    exit
    interface ethernet e5
    voice vlan enable
    exit
    interface ethernet e5
    voice vlan cos mode all
    exit
    interface ethernet e6
    voice vlan enable
    exit
    interface ethernet e6
    voice vlan cos mode all
    exit
    interface ethernet e7
    voice vlan enable
    exit
    interface ethernet e7
    voice vlan cos mode all
    exit
    interface ethernet e8
    voice vlan enable
    exit
    interface ethernet e8
    voice vlan cos mode all
    exit
    interface ethernet e9
    voice vlan enable
    exit
    interface ethernet e9
    voice vlan cos mode all
    exit
    interface ethernet e10
    voice vlan enable
    exit
    interface ethernet e10
    voice vlan cos mode all
    exit
    interface ethernet e11
    voice vlan enable
    exit
    interface ethernet e11
    voice vlan cos mode all
    exit
    interface ethernet e12
    voice vlan enable
    exit
    interface ethernet e12
    voice vlan cos mode all
    exit
    interface ethernet e13
    voice vlan enable
    exit
    interface ethernet e13
    voice vlan cos mode all
    exit
    interface ethernet e14
    voice vlan enable
    exit
    interface ethernet e14
    voice vlan cos mode all
    exit
    interface ethernet e15
    voice vlan enable
    exit
    interface ethernet e15
    voice vlan cos mode all
    exit
    interface ethernet e16
    voice vlan enable
    exit
    interface ethernet e16
    voice vlan cos mode all
    exit
    interface ethernet e17
    voice vlan enable
    exit
    interface ethernet e17
    voice vlan cos mode all
    exit
    interface ethernet e18
    voice vlan enable
    exit
    interface ethernet e18
    voice vlan cos mode all
    exit
    interface ethernet e19
    voice vlan enable
    exit
    interface ethernet e19
    voice vlan cos mode all
    exit
    interface ethernet e20
    voice vlan enable
    exit
    interface ethernet e20
    voice vlan cos mode all
    exit
    interface ethernet e1
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e2
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e3
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e4
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e5
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e6
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e7
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e8
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e9
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e10
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e11
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e12
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e13
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e14
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e15
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e16
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e17
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e18
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e19
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e20
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e21
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e22
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e23
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e24
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet g1
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet g2
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet g3
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet g4
    lldp optional-tlv port-desc sys-name sys-desc sys-cap 802.3-mac-phy 802.3-lag 802.3-max-frame-size
    exit
    interface ethernet e1
    lldp med notifications topology-change enable
    exit
    interface ethernet e2
    lldp med notifications topology-change enable
    exit
    interface ethernet e3
    lldp med notifications topology-change enable
    exit
    interface ethernet e4
    lldp med notifications topology-change enable
    exit
    interface ethernet e5
    lldp med notifications topology-change enable
    exit
    interface ethernet e6
    lldp med notifications topology-change enable
    exit
    interface ethernet e7
    lldp med notifications topology-change enable
    exit
    interface ethernet e8
    lldp med notifications topology-change enable
    exit
    interface ethernet e9
    lldp med notifications topology-change enable
    exit
    interface ethernet e10
    lldp med notifications topology-change enable
    exit
    interface ethernet e11
    lldp med notifications topology-change enable
    exit
    interface ethernet e12
    lldp med notifications topology-change enable
    exit
    interface ethernet e13
    lldp med notifications topology-change enable
    exit
    interface ethernet e14
    lldp med notifications topology-change enable
    exit
    interface ethernet e15
    lldp med notifications topology-change enable
    exit
    interface ethernet e16
    lldp med notifications topology-change enable
    exit
    interface ethernet e17
    lldp med notifications topology-change enable
    exit
    interface ethernet e18
    lldp med notifications topology-change enable
    exit
    interface ethernet e19
    lldp med notifications topology-change enable
    exit
    interface ethernet e20
    lldp med notifications topology-change enable
    exit
    interface ethernet e21
    lldp med notifications topology-change enable
    exit
    interface ethernet e22
    lldp med notifications topology-change enable
    exit
    interface ethernet e1
    lldp med enable network-policy poe-pse
    exit
    interface ethernet e2
    lldp med enable network-policy poe-pse
    exit
    interface ethernet e3
    lldp med enable network-policy poe-pse
    exit
    interface ethernet e4
    lldp med enable network-policy poe-pse
    exit
    interface ethernet e5
    lldp med enable network-policy poe-pse
    exit
    interface ethernet e6
    lldp med enable network-policy poe-pse
    exit
    interface ethernet e7
    lldp med enable network-policy poe-pse
    exit
    interface ethernet e8
    lldp med enable network-policy poe-pse
    exit
    interface ethernet e9
    lldp med enable network-policy poe-pse
    exit
    interface ethernet e10
    lldp med enable network-policy poe-pse
    exit
    interface ethernet e11
    lldp med enable network-policy poe-pse
    exit
    interface ethernet e12
    lldp med enable network-policy poe-pse
    exit
    interface ethernet e13
    lldp med enable network-policy poe-pse
    exit
    interface ethernet e14
    lldp med enable network-policy poe-pse
    exit
    interface ethernet e15
    lldp med enable network-policy poe-pse
    exit
    interface ethernet e16
    lldp med enable network-policy poe-pse
    exit
    interface ethernet e17
    lldp med enable network-policy poe-pse
    exit
    interface ethernet e18
    lldp med enable network-policy poe-pse
    exit
    interface ethernet e19
    lldp med enable network-policy poe-pse
    exit
    interface ethernet e20
    lldp med enable network-policy poe-pse
    exit
    interface ethernet e21
    lldp med enable network-policy poe-pse
    exit
    interface ethernet e22
    lldp med enable network-policy poe-pse
    exit
    lldp med network-policy 1 voice vlan 111 vlan-type tagged
    interface range ethernet e(1-22)
    lldp med network-policy add 1
    exit
    interface vlan 199
    ip address 199.16.30.77 255.255.255.0
    exit
    ip default-gateway 199.16.30.3
    interface vlan 1
    no ip address dhcp
    exit
    no bonjour enable
    bonjour service enable csco-sb
    bonjour service enable http  
    bonjour service enable https 
    bonjour service enable ssh   
    bonjour service enable telnet
    hostname psw1
    line console
    exec-timeout 30
    exit
    line ssh
    exec-timeout 30
    exit
    line telnet
    exec-timeout 30
    exit
    management access-list Management1
    permit ip-source 10.22.5.5 mask 255.255.255.0
    exit
    logging 199.16.31.33 severity debugging description mysysloghost
    aaa authentication enable Console local
    aaa authentication enable SSH tacacs local
    aaa authentication enable Telnet local
    ip http authentication tacacs local
    ip https authentication tacacs local
    aaa authentication login Console local
    aaa authentication login SSH tacacs local
    aaa authentication login Telnet local
    line telnet
    login authentication Telnet
    enable authentication Telnet
    password admin
    exit
    line ssh
    login authentication SSH
    enable authentication SSH
    password admin
    exit
    line console
    login authentication Console
    enable authentication Console
    password admin
    exit
    username admin password admin level 15
    power inline usage-threshold 90
    power inline traps enable
    ip ssh server
    snmp-server location in-the-closet
    snmp-server contact [email protected]
    ip http exec-timeout 30
    ip https server
    ip https exec-timeout 30
    tacacs-server host 1.2.3.4 key spaceballz  timeout 3  priority 10
    clock timezone -7
    clock source sntp
    sntp unicast client enable
    sntp unicast client poll
    sntp server 199.16.30.1
    sntp server 199.16.30.2
    ip domain-name mydomain.com
    ip name-server  199.16.5.12 199.16.5.13
    ip telnet server

  • SRW224G4P : voice vlan problem

    Hi guys ,
    i've a problem with tagged vlan with my SRW224G4P.
    I,ve got following scenario:
    one cisco 2801-CCME/k9 router
    one cisco small business SRW224G4P layer 2 managed switch
    ten cisco IP phone 7940 and 7931
    ten personal computer
    I need to use the embedded switch on the phone to connect computer . I need to
    have 2 separated vlan for data and voice traffic.
    I configured srw224g4p first 12 ports as follows
    interface ethernet 1/x
    switchport allowed vlan add 199 untagged
    switchport native vlan 199
    switchport allowed vlan remove 1
    switchport mode hybrid
    switchport allowed vlan add 150 tagged
    spanning-tree cost 100000
    spanning-tree edge-port
    where vlan 199 is for data and vlan 150 is for voice .
    I set following dhcp pool on 2801
    ip dhcp pool phones
    network 192.168.150.0 255.255.255.0
    default-router 192.168.150.1
    domain-name cmedeis.local
    option 150 ip 192.168.150.1
    ip dhcp pool PC
    network 192.168.199.0 255.255.255.0
    default-router 1982.168.199.1
    and configured router on a stick as follows
    interface FastEthernet0/0.150
    description CME interface
    encapsulation dot1Q 150
    ip address 192.168.150.1 255.255.255.0
    interface FastEthernet0/0.199
    encapsulation dot1Q 199
    ip address 192.168.199.1 255.255.255.0
    My problem is that phones connected to the switch ports doesn't recognize tagged
    traffic and doesn't take ip of the corrected dhcp pool of 150 vlan.
    With a cisco 2960 poe switch i configured switchport voice vlan 150 and
    switchport access vlan 199 and all is fine but this small business switch don't
    handle switchport voice attribute and i can't separate voice and data vlan .
    Someone have idea how to avoid this problem?
    Need some help , please.
    Bye

    Good posts as always Christopher!
    As Christopher mentions you will need to hard code the voice vlan on all of the phones.  The phones will send the voice traffic via this vlan, and the PCs will send untagged traffic. 
    I hope you do not mind a tangent and I hope this is not too great of a distraction, but the thought of QoS and security came to my mind as I read this post.
    Besides the vlan problems, which I am sure we can get through, there is also a concern.
    Any chance you would consider a 3560 for this deployment?  You have quite a few Cisco phones, a Cisco router, and many PCs. The Cisco switch would give you CDP, which would be useful for the voice vlan and power settings, as well as the important automatic QoS and security settings.
    On my 3560, I applied a smart port macro.  A smart port macro is a series of best practices / command sets put into a simple to use command.  The one I applied is called cisco-phone.  Here is the output before and after:
    c3560(config)#do sho run int f0/18
    interface FastEthernet0/18
    end
    c3560(config)#int f0/18
    c3560(config-if)#macr app cisco-phone
    c3560(config-if)#sw voice vlan 5
    c3560(config-if)#sw ac vl 1
    c3560(config-if)#do sho run int f0/18
    interface FastEthernet0/18
    switchport mode access
    switchport voice vlan 5
    switchport port-security maximum 2
    switchport port-security
    switchport port-security aging time 2
    switchport port-security violation restrict
    switchport port-security aging type inactivity
    srr-queue bandwidth share 10 10 60 20
    srr-queue bandwidth shape  10  0  0  0
    mls qos trust device cisco-phone
    mls qos trust cos
    macro description cisco-phone
    auto qos voip cisco-phone
    spanning-tree portfast
    spanning-tree bpduguard enable
    end
    The switch automatically globally enabled mls qos and configured the many class-maps, policy-maps, and applied them all accordingly.  As you know, it is important to establish the trust boundaries when doing voice and QoS.  These switches also uses SRR which is a very good way of applying shaping.
    Does this help?  I hope so.  Please fire back any thoughts or questions you may have.
    Andrew Lee Lissitz

  • Potential Security Hole with 802.1x and Voice VLANs?

    I have been looking at 802.1x and Voice VLANs and I can see what I think is a bit of a security hole.
    If a user has no authentication details to gain access via 802.1x - i.e. they have not been given a User ID or the PC doesn't have a certificate etc. If they attach a PC to a switchport that is configured with a Voice VLAN (or disconnect an IP Phone and plug the PC direct into the switchport) they can easily see via packet sniffing the CDP packets that will contain the Voice VLAN ID. They can then easily create a Tagged Virtual NIC (via the NIC utilities or driver etc) with the Voice VLAN 802.1q Tag. Assuming DHCP is enabled for the Voice VLAN they will get assigned an IP address and have access to the IP network. I appreciate the VLAN can be locked down at the Layer-3 level with ACL's so any 'non-voice related' traffic is blocked but in this scenario the user has sucessfully bypassed 802.1x authentication and gain access to the network?
    Has anyone done any research into this potential security hole?
    Thanks
    Andy

    Thanks for the reply. To be honest we would normally deploy some or all of the measures you list but these don't around the issue of being able to easily bypass having to authenticate via 802.1x.
    As I said I think this is a hole but don't see any solutions at the moment except 802.1x on the IP Phone, although at the moment you can't do this with Voice VLANs?
    Andy

  • 802.1x and Voice VLAN

    I had read articles on cco, and I believed for the same switch port we can have 802.1x configure and the voice vlan configure. It mean the IP phone is connect to the switch port with 802.1x configured, but the phone will not autheticate, only the workstation connect to phone data port will get authenticate.
    I had configured 802.1x and test with notebook logon and able to access the network. Now I would like to test the notebook attached to IP phone data port, and the phone connect to switch port configure with 802.1x. But I failed to add voice vlan commmand. Why ?
    interface GigabitEthernet9/48
    description temporary port
    switchport
    switchport access vlan 12
    switchport mode access
    no ip address
    dot1x port-control auto
    spanning-tree portfast
    CIG01-ENT-SW1(config-if)#switchport voice vlan 14
    Command rejected: Gi9/48 is Dot1x enabled port.

    Using IEEE 802.1x Authentication with Voice VLAN Ports
    A voice VLAN port is a special access port associated with two VLAN identifiers:
    ?VVID to carry voice traffic to and from the IP phone. The VVID is used to configure the IP phone connected to the port.
    ?PVID to carry the data traffic to and from the workstation connected to the switch through the IP phone. The PVID is the native VLAN of the port.
    In single-host mode, only the IP phone is allowed on the voice VLAN. In multiple-hosts mode, additional clients can send traffic on the voice VLAN after a supplicant is authenticated on the PVID. When multiple-hosts mode is enabled, the supplicant authentication affects both the PVID and the VVID.
    A voice VLAN port becomes active when there is a link, and the device MAC address appears after the first CDP message from the IP phone. Cisco IP phones do not relay CDP messages from other devices. As a result, if several Cisco IP phones are connected in series, the switch recognizes only the one directly connected to it. When IEEE 802.1x authentication is enabled on a voice VLAN port, the switch drops packets from unrecognized Cisco IP phones more than one hop away.
    When IEEE 802.1x authentication is enabled on a port, you cannot configure a port VLAN that is equal to a voice VLAN.
    Waht kind of switch do you have? In 3550 I can configure the port for both vvid and pvid:
    interface FastEthernet0/1
    switchport access vlan 3
    switchport mode access
    switchport voice vlan 2
    no ip address
    dot1x port-control auto
    spanning-tree portfast
    end
    Nevertheless, as the statement above indicates, the port will need to be configured for multi-host in order the PC behind the phone get autehntication:
    under the interface configure "dot1x host-mode multi-host"
    Nevermind, I just realized that you might have a 5600 running native, checking the configuration guide and realese notes it does not looks like dot1x and vvlan can play together in that platform.

  • Setting up a Test Voice VLAN for Lync 2013

    I want to set up a second voice vlan to be a test vlan.
    In the current situation the customer has voice and data running on  vlan1. The customer insist on taking incremental steps to improve QoS. I have advocated separated vlans for voice and data. They just want to move everything (phase 1) to a different
    vlan. They want to see how getting all traffic of vlan 1 will improve there performance. Again, I recommended the best practice, they want to try this approach first.
    I am conducting a pilot test with just one cx600 IP phone. and a single switchport. I created a new vlan99 using VTP.  I configured the switchports on the Cisco 2960-x switch as follows.
    #switchport mode access
    #switchport access vlan 99
    The phone gets its correct vlan id, and pulls its IP from the correct dhcp scope. However the phone displays "connecting with the lync server" for a long time, then "connecting to download its certificates". This takes a long time then fails.
    If I change the switchport back to vlan1 it works fine. What can be the problem? Does the vlan99 need to be defined on the lync server? How many vlans can be supported by Lync 2013?
    Thank you,
    gigiu

    Did you set the VLAN Configuration for Lync Phone Edition?
    You can check the following links:
    http://blog.schertz.name/2011/01/manual-vlan-configuration-for-lync-phone-edition/
    http://www.bricomp.com/blogs/post.cfm/dedicated-voice-vlan-for-lync-devices
    Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please
    make sure that you completely understand the risk before retrieving any suggestions from the above link.
    Lisa Zheng
    TechNet Community Support

  • SUP failed over manually, voice service failed after FAILOVER, started accessing old voice vlan which was removed from config

    Hey guys, 
    I am pretty sure, my subject is kinda confusing. Sorry about that. Here is what happened. 
    1. 4510r with Supervisor V 1000BaseX, switched over to standby Sup, then reseated Active SUP, once reseat complete, switched again to get the reseated SUP up and running as Active SUP. 
    2. a simple maintenance which was supposed to cause no outage and it did not cause any outage as well. 
    3. however, what i did not notice was, even though the voice vlan was configured to access 2353, they were accessing vlan 453. 
    4. the change was made 2 weeks prior to this maintenance where voice vlans were previously accessing 453 and they were all changed to access 2353. configs were saved. 
    5. however, after the maintenance, the running config showed that they were acessing 2353 but when checking the mac address on the interface, it was seen accessing 453. 
    6. the fix was to remove the config and re add it , that fixed it. 
    Has anyone else experienced the issue ? What really happened there ?  
    software version: Version 15.0(2)SG5
    #sh module 
    Chassis Type : WS-C4510R
    Power consumed by backplane : 40 Watts
    Mod Ports          Card Type                                            Model             
    ---+-----+--------------------------------------+------------------+-----------
     1     2  Supervisor V 1000BaseX (GBIC)                 WS-X4516            
     2     2  Supervisor V 1000BaseX (GBIC)                  WS-X4516           
     3    48  10/100/1000BaseT (RJ45)V, Cisco/IEEE   WS-X4548-GB-RJ45V  
     5    48  10/100/1000BaseT (RJ45)V, Cisco/IEEE   WS-X4548-GB-RJ45V   
     6    48  10/100/1000BaseT (RJ45)V, Cisco/IEEE   WS-X4548-GB-RJ45V   
     7    48  10/100/1000BaseT (RJ45)V, Cisco/IEEE   WS-X4548-GB-RJ45V  
     8    48  10/100/1000BaseT (RJ45)V, Cisco/IEEE   WS-X4548-GB-RJ45V   
     9    48  10/100/1000BaseT (RJ45)V, Cisco/IEEE   WS-X4548-GB-RJ45V   

    configs were saved many times prior to the maintenance. i did a " write mem ". 

  • PC Voice VLAN Access

    Hi all,
    I've just been testing using Cisco IP Phones with the Linksys SRW224P switch (which do not support CDP and automatic voice VLAN assignment). It's all pretty straightforward, however, I found I needed to enable the "PC Voice VLAN Access" setting for the IP phone to get the PC (attached to the phone) communicating on the network. With this setting disabled, the PC cannot communicate on the network, even if the correct data VLAN ID is configured in the "PC VLAN" setting on the phone. This same issue is also replicated if I disable CDP on a Cisco switch and manually configure the voice VLAN ID on the phone.
    Any ideas as to why this is the case? My understanding of the PC Voice VLAN Access setting is that it enables an attached PC to access the voice VLAN (i.e. tag frames with the voice VLAN ID and send on the voice VLAN, and receive frames on the voice VLAN). The traditional port mirroring issues associated with this setting aren't an issue nowadays, as you now have the additional "Span to PC Port" setting to control this.

    Hi Eric,
    Please make sure you are sniffing the correct interface. For example, if you have more than one interface (such as Wireless Ip address or VPN
    connection) select the one you want to sniff. Please check the following link, it shows you how to set up a sniffer capture using wireshark:
    http://wiki.wireshark.org/CaptureSetup
    Regards,
    Teresa.
    If you find this post helpful, please rate! :)

  • About SRW224G4P Voice vlan issue

    Hi,
    I've configured the SRW as many vlan, use vlan 212 for voice, 348 for data and connect with cisco IP Phone.
    vlan database
    vlan 210-216,345-348
    exit
    voice vlan id 212
    interface fastethernet1
     storm-control broadcast enable
     storm-control broadcast level 10
     storm-control include-multicast
     port security max 10
     port security mode max-addresses
     port security discard trap 60
     spanning-tree portfast
     switchport trunk allowed vlan add 212
     switchport trunk native vlan 348
     macro description ip_phone_desktop
     !next command is internal.
     macro auto smartport dynamic_type ip_phone_desktop
    but when I show voice vlan,
    it shows:
    =====================================
    1ASW01#show voice vlan                        
    Administrate Voice VLAN state is auto-triggered
    Operational Voice VLAN state is auto-enabled
    Best Local Voice VLAN-ID is 212
    Best Local VPT is 5 (default)
    Best Local DSCP is 46 (default)
    Agreed Voice VLAN is received from switch 34:62:88:73:05:c9
    Agreed Voice VLAN priority is  0 (active static source)
    Agreed Voice VLAN-ID is 216
    Agreed VPT is 5
    Agreed DSCP is 46
    Agreed Voice VLAN Last Change is 03-May-13 05:06:31
    =====================================
    I don't know why vlan 216 become the voice vlan ?
    I've tried the modified the macro build-in parameters,
    macro auto built-in parameters ip_phone $native_vlan 348
    macro auto built-in parameters ip_phone_desktop $native_vlan 348
    but system could not modify $voice_vlan value.
    how to fix it ?

    Hi Skywings,
    So I am guessing the above output is after the change, right? If this is true it looks like something went wrong during the configuration process. Auto Voice VLAN process has two main phases where the first one is related to communication between switches and other Cisco infrastructure devices and synchronizing the Voice VLAN ID. The second phase is related to identifying the end device as phone. What I can see in your case that the first phase is failing somehow since the voice VLAN ID is different than locally configured. Can you share with me your running and also startup config plus CDP neighbours? You may use private message.
    Regards,
    Aleksandra

  • Voice-vlan problem in DID

    Dear sir
    i wanted to know that how can i hear voice in my voice vlan. as i m using 2801 voice gateway with PRI (only PSTN connectivity) ,and 3560 switch for voice and data vlan.
    My voice gateway IP is 192.168.1.221 and is data Vlan on port 7 as mentioned in attched file.
    similarly call manager is also on data vlan and on port 24. and my call manager ip is 192.168.1.54.
    my ip phones are in port 3 and port 4 and using static ip address no DHCP server.
    Ip phone address are 192.168.2.113 and 192.168.2.118 9 both are in voice vlan)
    My problem is when external caller calls on my DID numbers call rings and any external user can easily hear voice, but my internal user is unable to hear any voice of external caller.
    this behavior works fine without any data/voice vlan configuration.
    i am confuse this shows me a problem with vlan only.
    kindly correct me your assistance will be higly appreciated.
    thanks

    Zeeshan,
    Thanks for posting the gateway configuration. You've stated that the problem is that when a call comes in from the PSTN, the internal user is unable to hear the audio of the external caller, while the external caller can hear the internal caller.
    The reason is because the gateway does not have a route to the subnet that the internal phones are in. To fix he problem, add the following route in the gateway so that the audio of the external caller may be routed correctly to the phone subnet:
    ip route 192.168.2.0 255.255.255.0 192.168.1.1
    Test after making the change and let us know if you still have the issue.
    Hope this helps.
    Michael.

  • Phone not picking up Voice VLAN

    Hi All,
    Strange issue that's just started happening with a few 6921 phones.
    On our cisco switch when port is configured with data and voice vlan, the phone picks up an IP address from the data vlan and in turn doesn't register. It's as if it doesn't see the voice vlan. As soon I remove the data vlan and have voice vlan only on the port, phone picks up IP from the voice network and registers against the CME. This all worked before on the same ports, nothing changed. It just suddenly stopped working.
    Anyone seen this before?
    Thanks

    Hi,
    Ok first output is when the phone doesn't work. VLAN 7 is the data vlan and 81 is Voice on this LAN.
    interface FastEthernet2/0/39
     description IP and Data Port
     switchport access vlan 7
     switchport mode access
     switchport voice vlan 81
     srr-queue bandwidth share 10 10 60 20
     srr-queue bandwidth shape 10 0 0 0
     priority-queue out
     mls qos trust device cisco-phone
     mls qos trust cos
     auto qos voip cisco-phone
     macro description cisco-phone
     spanning-tree portfast
     spanning-tree bpduguard enable
     service-policy input AutoQoS-Police-CiscoPhone
    Output below is when the phone does work.
    interface FastEthernet2/0/39
     description IP and Data Port
     switchport mode access
     switchport voice vlan 81
     srr-queue bandwidth share 10 10 60 20
     srr-queue bandwidth shape 10 0 0 0
     priority-queue out
     mls qos trust device cisco-phone
     mls qos trust cos
     auto qos voip cisco-phone
     macro description cisco-phone
     spanning-tree portfast
     spanning-tree bpduguard enable
     service-policy input AutoQoS-Police-CiscoPhone
    end
    And this did work previously. Only 6921 phones affected.

  • Voice VLAN Help Please

    My customer has 2 SG300-52P and 5 SG300-28P. We installed a VoIP phone system earlier this year. At the time of install we placed the phone system on the native VLAN 1. Now they want to move the phone system to a new VLAN because their class C subnet is running out of addresses. DHCP is handled by their Active Directory and their router/firewall is an Untangle Box. The SG300 switches have a basic configuration only.
    To move the phone system to a new VLAN I created VLAN 20 on every switch. I then turned Auto Voice VLAN on. I have every port on every switch set to trunk. Computers are plugged into back of phones. I then created a virtual interface on the Untangle Box for VLAN 20. The Untangle Box is also handling DHCP for the new VLAN. Active Directory is still handling DHCP for native VLAN.
    From each switch I can ping the gateway of the new VLAN. From each computer I can ping the gateway and the phone system on the new VLAN. However, the phones will not grab an address on the VLAN and when they are set to static, they cannot communicate with other devices on the VLAN.
    Any help would be highly appreciated. I am not sure what I am overlooking.

    Here is an example of part of a working switch config with Zultys phones where voice VLAN is 100 and data VLAN is 10:
    vlan database
    vlan 10,20,100 
    exit
    voice vlan id 100 
    interface fastethernet1
     description "RCP and Voice"
     switchport trunk allowed vlan add 100 
     switchport trunk native vlan 10 
    interface fastethernet2
     description "RCP and Voice"
     switchport trunk allowed vlan add 100 
     switchport trunk native vlan 10 
    In your case you need a trunk port with VLAN 20 tagged on your firewall (or an access port to a separate physical port on VLAN 20.  The default gateway served to the phone (or put there statically) should be the interface on the IP.  Then you may also want to allow inter-vlan routing for admin access or MXIE if you are using it.
    One thing to note on Zultys is by default I think the device profile disables LLDP, but on the phones it is enabled out of the box.  So the first time a phone downloads its config from the Zultys it may turn of LLDP unless you checked the box to keep it on.

  • Voice VLAN vs Data VLAN

    Hi,
    I have a call manager connected to switch with three VLANS configured, one voice vlan and two data vlan,
    int f0/1-2
    switchport mode access
    switchport access VLAN 200
    int f0/3-23
    switchport mode access
    switchport access VLAN 300
    switchport voice VLAN 100
    intf0/24
    switchport mode trunk
    switchport trunk encapsulation dot1q
    int g0/0.100
    encapsulation dot1q 100
    ip address 172.100.1.1 255.255.255.0
    int g0/0.200
    encapsulation dot1q 100
    ip address 172.200.1.1 255.255.255.0
    int g0/0.300
    encapsulation dot1q 100
    ip address 172.300.1.1 255.255.255.0
    I am able to access the call manager if I assign it an IP under data VLAN range, but if I assign IP under voice VLAN( 172.100.1.0/24 ) i am not able to access the call manager, If i assign an IP address to the call manager under voice VLAN I am not able to ping even the default gateway 172.100.1.1
    What may be the issue.
    Regards,
    Shaggy

    Hi,
         try this.
    int g0/0.100
    encapsulation dot1q 100
    ip address 172.100.1.1 255.255.255.0
    int g0/0.200
    encapsulation dot1q 200
    ip address 172.200.1.1 255.255.255.0
    int g0/0.300
    encapsulation dot1q 300
    ip address 172.300.1.1 255.255.255.0
    hth
    Muammer

  • Voice VLAN with SRW224G4P

    Hi all,
    I have been trying to config a voice vlan into this switchs for the last 3 hours and for me this is impossible... I know how to do in a IOS switch but with this switchs is a nightmare...
    I have this topology,
    PC ---- IP phone ----- SW1 SRW224G4P -------- SWCORE SRW2024 --------- Router 2921 CME
    I have this config in my router,
    interface GigabitEthernet0/0
    no ip address
    duplex auto
    speed auto
    interface GigabitEthernet0/0.1
    description LAN
    encapsulation dot1Q 1 native
    ip address 192.168.5.95 255.255.255.0
    ip virtual-reassembly in
    interface GigabitEthernet0/0.100
    description Voice VLAN
    encapsulation dot1Q 100
    ip address 192.168.251.1 255.255.255.0
    ip virtual-reassembly in
    SW1 has created the VLAN 100 and enabled as VOICE VLAN
    The first 3 octes of the mac of my phone is inserted into Telephony OUI Table
    The Auto Voice VLAN Membership is enabled in the port where phone is attached.
    The port that is conected to SWCORE has the vlan 100 configured as tagged.
    SWCORE has created the VLAN 100 and enabled as VOICE VLAN
    The port that is conected to SW1 has the vlan 100 configured as tagged.
    The port that is conected to router CME has the vlan 100 configured as tagged.
    If I config other port into SWCORE with VLAN 100 tagged I can ping from CME to that host.
    Could be the problem a vlan propagation error?
    Somebody could help me? I am desperate...
    Thank you in advance.

    Hi David,
    Thank you for the purchase of the switch.
    .Like anything,  even riding a bike,  the switch is actually very easy to configure, if you have a little bit of practice on it.. 
    You mentioned you are using the " Telephony OUI Table" i guess you have a SF300-24P or ordering p/n SRW224G4P-K9-NA.  Please be specific with the switch models you are using. 
    Are you using the older SRW series or the refreshed SRWxxx-K9 (300 series) switch in the core?
    Firstly, make sure you are using version 1.1.0.73 of the switch firmware. Do that change now or verify that 1.1.0.73 is the active image on the switch.
    The switch has two areas for storing firmware images.  It stores the new firmware in the unused image area.  Check the administration guide for how to upgrade firmware and select new firmware for the next reboot.
    CDP is enabled on the switch when you use the new software, it was not there with older firmware, hence my insistance at upgrading firmware.
    ( Personally  i would prefer you to have a catalyst switch for your ISRG2 CME application, for tech support purposes. But this is the land of the free..)
    I found the following when I added my SG300-28P  to a VLAN aware UC500.
    The UC500  was advertising vlan100 as a voice vlan, configured that by Cisco Configuration Assistant, you might try CCP on your ISR.
    I had a IP phone plugged into switch port G7 and a uplink to my UC500 via port Gig27. 
    The following in blue is a screen copy from my 300 series switch CLI interface.
    You will note the switch automatically populated both VLAN and port information, the only command I added was "no passwords complexity enable," and some usernames,  which  removed from the screen capture below.
    the switch basically configured itself.
    ------------------ show system ------------------
    System Description:                       28-port Gigabit PoE Managed Switch
    System Up Time (days,hour:min:sec):       00,00:12:04
    System Contact:                          
    System Name:                              switch4cf17c
    System Location:                         
    System MAC Address:                       d0:d0:fd:4c:f1:7c
    System Object ID:                         1.3.6.1.4.1.9.6.1.83.28.2
    Fans Status:                              OK
    ------------------ show version ------------------
    SW version   1.1.0.73 ( date  19-Jun-2011 time  18:10:49 )
    Boot version  1.0.0.4 ( date  08-Apr-2010 time  16:37:57 )
    HW version    V01
      Gateway IP Address        Activity status       Type  
    192.168.10.1            Active                  dhcp    
        IP Address         I/F       Type       Status   
    192.168.10.17/24    vlan 1    DHCP        Valid      
    ------------------ show ipv6 interface ------------------
    IPv6 is disabled on all interfaces
    ------------------ show running-config ------------------
    interface gigabitethernet7
    storm-control broadcast level 10
    exit
    interface gigabitethernet7
    storm-control include-multicast
    exit
    interface  gi27
    spanning-tree link-type point-to-point
    exit
    vlan database
    vlan 100
    exit
    voice vlan oui-table add 0001e3 Siemens_AG_phone________
    voice vlan oui-table add 00036b Cisco_phone_____________
    voice vlan oui-table add 00096e Avaya___________________
    voice vlan oui-table add 000fe2 H3C_Aolynk______________
    voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
    voice vlan oui-table add 00d01e Pingtel_phone___________
    voice vlan oui-table add 00e075 Polycom/Veritel_phone___
    voice vlan oui-table add 00e0bb 3Com_phone______________
    hostname switch4cf17c
    no passwords complexity enable
    no snmp-server server
    interface gigabitethernet7
    macro description ip_phone_desktop
    exit
    interface gigabitethernet27
    macro description "switch | no_switch | switch"
    exit
    interface gigabitethernet7
    !next command is internal.
    macro auto smartport dynamic_type ip_phone_desktop
    switchport trunk allowed vlan add 100
    exit
    interface gigabitethernet27
    !next command is internal.
    macro auto smartport dynamic_type switch
    switchport trunk allowed vlan add 100
    exit
    switch4cf17c#sh cdp nei
    Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
                      S - Switch, H - Host, I - IGMP, r - Repeater, P - VoIP Phone
                      M - Remotely-Managed Device, C - CAST Phone Port,
                      W - Two-Port MAC Relay
      Device ID        Local      Adv  Time To Capability   Platform     Port ID
                       Interface  Ver. Live
    SEP503De50F133A      gi7      2     158      H P     CISCO IP        eth0
                                                         Phone
                                                         SPA525G2
    68bdab0fdcfd        gi27      2     169      S I     Cisco SG         gi9
                                                         300-10P
                                                                                               (PID:SRW2008P-K9)-VSD
    switch4cf17c#sh vlan
    Vlan       Name                   Ports                Type     Authorization
    1           1                gi1-28,Po1-8           Default      Required
    100         100                 gi7,gi27            permanent    Required
    Switch automatically figures which ports should be tagged into VLAN 100.
    I did not tell the switch it was connected to VLAN100. I did not add vlan100 to the VLAN database.
    So get the ISR router to advertise VLAN100 as a voice vlan.
    regards Dave

Maybe you are looking for